Public Works Design and Construction Manual Prepared for The City of Auburn, Alabama ...

438 Pages·2015·13.51 MB·English

Public Works
Design and Construction Manual

Prepared for
The City of Auburn, Alabama

Prepared by
NEEL-SCHAFFER, INC.
Birmingham, Alabama

June 10, 2010
Latest Revision: January 1, 2016
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Contents
1.0 GENERAL INFORMATION:……….…………………………………………………….…... 1-1

1.1 INTRODUCTION……....……….………………………..…..…………………………….. 1-1
1.1.1 Purpose of the Manual………………………………………………………… 1-1
1.1.2 Use of the Manual……………………………………………………..……….. 1-1
1.1.3 Authority (Governing Regulations)………………………………………….. 1-2
1.1.3 Fines and Penalties……………………………………………………………. 1-2

1.2 ACRONYMS AND DEFINITIONS……………………………….…………..……................. 1-3
1.2.1 Purpose………………………………………………………………………….. 1-3
1.2.2 Word Usage…………………………………………………….………………. 1-3
1.2.3 Abbreviations…………………………………………………….…….............. 1-3
1.2.4 Acronyms…………………………………………………….….……................ 1-4
1.2.5 Definitions…………………………………………………….…........................ 1-5

1.3 DEVELOPMENT PROCESS………………………………..……………………….….…... 1-24
1.3.1 Overview…………………………………………………………………….….. 1-24
1.3.2 Site Plan Project…………………………………………………………….….. 1-24
1.3.2.1 Rezoning……………………….………...………………………….… 1-24
1.3.2.2 Permitted Uses………………………………………………………...1-24
1.3.2.3 Conditional Uses……………………………………………............... 1-24
1.3.2.4 Traffic Study………………………………………………………….. 1-24
1.3.2.5 Development Committee………………………….…………............ 1-25
1.3.2.6 Engineering Plans……………………………………………............. 1-26
1.3.3 Subdivision………………………………………………………………………1-26
1.3.3.1 Rezoning……………………...………………………......................... 1-26
1.3.3.2 Lot Layout Plans……………………………….…………………….. 1-26
1.3.3.3 Preliminary Plat……………………………….……………............... 1-26
1.3.3.4 Engineering Plan……………………………………………............... 1-27
1.3.3.5 Final Plat……………………………………….…………..……….…. 1-27
1.3.3.6 Bonding………………………………………...……………………... 1-27
1.3.3.7 Traffic Study………………………………………………................ 1-28
1.3.3.8 Development Committee………………….……..………….………. 1-28
1.3.4 Development Review Team (DRT)………………………………………...… 1-29
1.3.4.1 DRT Process Overview……………………………………................ 1-29
1.3.4.2 Pre-construction Meeting…………………………………………… 1-30
1.3.4.3 DRT Submittal Requirements……………………………................. 1-30
1.3.4.4 DRT Forms and Checklists……………………………….................. 1-33
1.3.4.5 Final Approval………...………………………………...…..……...… 1-34
1.3.4.6 DRT Process Flowchart………………………………...…................. 1-34
1.3.5 Permits……………………………………………………….………………….. 1-36
1.3.5.1 Demolition Permit…………..……………………………………...… 1-36

LATEST REVISION: JANUARY 1, 2016 I
Contents
1.3.5.2 Burn Permit……………………………………….…………..………. 1-36
1.3.5.3 Erosion and Sedimentation Control Permit………..……................ 1-36
1.3.5.4 Clearing, Grading, and Utility Permit………………………........... 1-37
1.3.5.5 AWWB Water Main Connection Permit…………………………… 1-37
1.3.5.6 Blasting Permit…………………………………..……….................... 1-38
1.3.5.7 Zoning Certificate………………………...…………………..…........ 1-38
1.3.5.8 Building Permit…………………...……………………..…………… 1-38
1.3.5.9 Sign Permit……………………………...………………...….…….…. 1-39
1.3.5.10 Other Permits…………………………...…………………...…........... 1-39

1.4 PROJECT COMPLETION REQUIREMENTS – CONSTRUCTION…………………………...... 1-40
1.4.1 Approved Plans and Revisions………………..………………………............ 1-40
1.4.2 Materials………………….………………...……………………………..…..… 1-40
1.4.2.1 Submittals……...………………………………………………………1-40
1.4.3 Installation Requirements…….………………..………………………............ 1-41
1.4.4 Inspection and Testing….…….………………..………………………............ 1-41
1.4.5 Contacts…………………..…….………………..………………………............ 1-41

1.5 PROJECT COMPLETION REQUIREMENTS – AS-BUILT DRAWINGS…..………………….... 1-42
1.5.1 Surveying………………………………………..………………………............ 1-42
1.5.2 Engineering ……………..………………...……………………………..…..… 1-45
1.5.3 Submittal……………………….………………..………………………............ 1-46

1.6 PROJECT COMPLETION REQUIREMENTS - EASEMENTS……………………………........ 1-48
1.6.1 Discussion...……………………………………..………………………............ 1-48
1.6.2 Dedication by Document………………...……………………………..…...… 1-49
1.6.3 Dedication by Plat…………….………………..………………………............. 1-49
1.6.4 Easement Language…….…….………………..………………………............. 1-50

1.7 PROJECT COMPLETION REQUIREMENTS – AGREEMENTS.…………………………...... 1-51
1.7.1 Hold Harmless and Indemnity………………..………………………............ 1-51
1.7.2 Easement Encroachment..………………...……………………………..…..… 1-51

1.8 PROJECT COMPLETION REQUIREMENTS – ACCEPTANCE..…………………………...... 1-52
1.8.1 Authorities..……………………………………..………………………............ 1-52
1.8.2 Preliminary Acceptance...………………...……………………………..…..… 1-52
1.8.3 Final Acceptance………...………………...……………………………..…..… 1-53

1.9 PROJECT COMPLETION REQUIREMENTS – WARRANTY PERIOD……………………....... 1-54

LATEST REVISION: JANUARY 1, 2016 II
Contents

1.10 PROJECT COMPLETION REQUIREMENTS – FEES AND CHARGES..…………………….... 1-55
1.10.1 Discussion...……………………………………..………………………............ 1-55
1.10.2 Water and Sewer Fee Estimates………………………...…………………….. 1-55

1.11 UPDATES AND WAIVERS TO THE MANUAL………...…………………………………..... 1-56
1.11.1 Updates…………………………………………..………………………............ 1-56
1.11.2 Project-Specific Waivers………………...……………………………..…….… 1-56
1.11.2.1 Waiver Criteria…………………………………………………..…… 1-56
1.11.2.2 Procedure…………………...………………………………………… 1-56

Appendix A.
A-1 Site Development Application for DRT Submittal
A-2 Subdivision Application for DRT Submittal
Appendix B.
B-1 Site Development Plans Engineering Checklist
B-2 Subdivision Construction Plans Engineering Checklist
B-3 Site Plan Sufficiency Checklist
B-4 Drainage Checklist and Stormwater Drainage Forms
B-5 DRT Meeting Waiver
B-6 Signature Bond for Development
Appendix C. Hold Harmless Agreement
Appendix D. Easement Encroachment
Appendix E.
E-1 Request for Design and Construction Standard Waiver Form
E-2 Amendments

2.0 TRAFFIC SIGNAL DESIGN GUIDELINES:……………………………………………….….. 2-1

2.1 SIGNAL DESIGN ELEMENTS……...………………………………………………….…... 2-1
2.1.1 Signal Heads……………………………………………………………………. 2-1
2.1.2 Signal Supports………………………………………………………………… 2-1
2.1.3 Cabinet and Controller Equipment……………………………..…………… 2-2
2.1.4 Communications…………………….……………………………………......... 2-2
2.1.4.1 Extension of Existing System………..…………………..…….……. 2-2
2.1.4.2 New System Implementation…………....……….…………………. 2-3
2.1.5 Signal Wiring, Conduit and Junction Boxes……………………………….... 2-3
2.1.6 Power Supply……………………...…………………………………………… 2-3
2.1.7 Vehicle Detection…………………………….……………………….………... 2-3
2.1.7.1 Stop Line Detection.…….……………………………..……….……. 2-4
2.1.7.2 Advanced Detection…………..……….…….…………….……........ 2-4

LATEST REVISION: JANUARY 1, 2016 III
Contents
2.1.7.3 Video Detection...….………………….……….……………………... 2-5
2.1.7.4 Wireless Detection...….………………….……….……………...........2-5
2.1.8 Railroad Pre-Emption………………….……….……………………………… 2-5
2.1.9 Intersection Signage……………………….……………………………..……. 2-6
2.1.10 Pedestrian Signal………………………………..………………………..….…. 2-6
2.1.10.1 Warrants……………..……………………….……..………....……… 2-7
2.1.10.2 Sequence……………...………………………….………………......... 2-7
2.1.10.3 Timing…………………...………………………………….…………. 2-7
2.1.11 Intersection Lighting………………………………….…………................... 2-7

2.2 SIGNAL TIMING……………………………………………………………………….…… 2-9
2.2.1 Cycle Lengths………………………………………………………………… 2-9
2.2.2 Actuated Timing Parameters……………………………………………….. 2-9
2.2.3 Signal Timing Plans…………………………………………………………. 2-9

2.3 PLANS PRODUCTION……………………………………………………………………… 2-10
2.3.1 Traffic Signal Notes……………………………………..……………….…….. 2-10
2.3.2 Signal Plan………………………………………………...…..…………............ 2-10
2.3.2.1 Installation Notes………………………….……….………….……... 2-10
2.3.2.2 Signal Head Displays……………………………………..…………. 2-10
2.3.2.3 Signage Displays……………………………..……..……………….. 2-11
2.3.2.4 Pre-Emption Phasing Diagram………………….....………………. 2-11
2.3.2.5 Signal Sequence Chart………………………...…...…….………...… 2-11
2.3.2.6 Conflict Monitor Chart…………………..…...……………….……... 2-11
2.3.2.7 Wiring Diagram and Table…………………...…..…………………. 2-11
2.3.2.8 Materials List………………………………....…….………...………. 2-11
2.3.3 Details and Standard Drawings…………….………….………………........... 2-12
2.3.4 Communication Plan………………………….……...………………………... 2-12

2.4 CONSTRUCTION……..…………………….……….………………………………..…… 2-13
2.4.1 Materials Submittal……………..………………….……………………..……. 2-13
2.4.2 Test Requirements………………...…………………………………………… 2-13
2.4.3 Inspection…………………….……………….……………………………..….. 2-13
2.4.4 Closeout………………………...………….………………………………..….. 2-14

Appendix F. Traffic Signal Plans Submittal Checklist
Appendix G. Traffic Signal Notes
Appendix H. Traffic Signal Details and Specifications

3.0 TRAFFIC CALMING:……………………………………………………………….....…… 3-1

LATEST REVISION: JANUARY 1, 2016 IV
Contents
3.1 TRAFFIC CALMING PROCESS SUMMARY……..…………………………………..……... 3-1

3.2 EXISTING CONDITION ANALYSIS…………..………….…….………….…………...…… 3-2
3.2.1 Minimum Vehicular Volume………….………...………………...………..… 3-2
3.2.2 Speed……………………………………..…………...……………….…....…… 3-2
3.2.3 Cut Through Traffic…………………….……………….……………..………. 3-2
3.2.4 Accidents……………………………………..………….……………………… 3-3
3.2.5 Street Grades and Alignment…………..……………...……………….……... 3-3
3.2.6 Transit, School and Emergency Routes………………………...…….……… 3-3

3.3 RESULTS OF TRAFFIC CALMING ANALYSIS…….……………………………………...... 3-4

3.4 NEIGHBORHOOD PETITIONS AND COST SHARE…………………..……………………. 3-5
3.4.1 Standard Materials……………………………….………………….……….… 3-5
3.4.2 Standard Landscaping………………………………...…………………….… 3-5
3.4.3 Exceptions – Special Material/Landscaping Requests………….…..….…. 3-5

3.5 REVIEW AND ANALYSIS OF APPLIED SOLUTIONS…………………..……………..……. 3-7
3.5.1 Removal…………………………………………………………………………. 3-7
3.5.2 Re-Evaluation………………………………………………………..…………. 3-7

3.6 CONSTRUCTION……..…………………………………..……………………………..… 3-8
3.6.1 Material Submittal…………………………………………….…..……..…….. 3-8
3.6.2 Test Requirements…………………………………………..……………….... 3-8
3.6.3 Inspection……………………………………………………………………….. 3-8
3.6.4 Maintenance………………………………………………………………………. 3-8

Appendix I. Traffic Calming Request Form
Appendix J. Examples of Traffic Calming Measures

4.0 TRAFFIC IMPACT STUDIES:……………………………………………….……………… 4-1

4.1 TRAFFIC IMPACT STUDY REQUIREMENTS.......................................................................... 4-1
4.1.1 General…………………………………………………..………………….…... 4-1
4.1.2 Applicability…………………………………………………..……...………… 4-1
4.1.3 Applicant Responsibility……………………………………………..…..…… 4-2
4.1.4 Capacity and Safety Issues……………………………………………….…… 4-2
4.1.4.1 Vehicular Traffic Improvements……………………………….……... 4-3
4.1.4.2 Pedestrian Traffic Considerations and Improvements………….......4-3
4.1.4.3 Bicycle Traffic Improvements…………………………..……...……... 4-3

4.2 TRAFFIC IMPACT STUDY PROCEDURES AND CRITERIA………………….…………...…. 4-4

LATEST REVISION: JANUARY 1, 2016 V
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4.2.1 Scoping Meeting/Telephone Conference……………..………………….…. 4-4
4.2.2 Evaluation Elements……………………………………………………..…….. 4-5
4.2.3 Roadway Traffic Volumes/Traffic Counts……………..……………...….… 4-5
4.2.4 Intersection and Approach Level of Service…………………………..…….. 4-6
4.2.5 Trip Generation Rate…………………………………………………………... 4-6
4.2.6 Preliminary Land Use Assumptions……………………………..................... 4-7
4.2.7 Trip Generation Table………………………………………..………………... 4-8
4.2.8 Trip Distribution……………………………………………………..……........ 4-8
4.2.9 Requirements for Additional Lanes...………………………………………... 4-8
4.2.10 Intersection Delay..……………………………………………….………......... 4-8
4.2.11 Driveway Access………………………………………………….……...…….. 4-9
4.2.12 Traffic Signals..…………………………………………………………..……... 4-9
4.2.13 Mitigation Thresholds and Measures..……………………………………..... 4-10
4.2.14 Traffic Signal Operations Improvements..………………………................... 4-10
4.2.15 Geometric Improvements..……………………………………………….…… 4-10
4.2.16 Pedestrian/Bicycle Improvements……………………………….…….…….. 4-10

4.3 TRAFFIC IMPACT STUDY REPORT CONCLUSIONS…………….…………………….…... 4-12
4.3.1 Geometric Improvements……………………………………………..……..... 4-12
4.3.2 Responsibility………………………………………………..…………….…… 4-12

4.4 TRAFFIC IMPACT STUDY REPORT OUTLINE………….……………………………….…. 4-13

5.0 ROADWAY DESIGN:……………………………………………………………………… 5-1

5.1 INTRODUCTION………...………………………………………….………………..……. 5-1

5.2 ROADWAY DESIGN ELEMENTS………………………………………...…………….…... 5-2
5.2.1 Design Controls and Criteria………………………………………………..... 5-2
5.2.1.1 Street and Road Classifications………………………………...…….. 5-2
5.2.1.2 Design Vehicles……………………………………………..….………. 5-3
5.2.1.3 Design Speed………………………………………………….………... 5-3
5.2.2 Horizontal Alignment…………………………………………………….…… 5-4
5.2.3 Vertical Alignment…………………………………………………….….......... 5-4
5.2.3.1 Sight Distance…………………………………………………...……… 5-4
5.2.3.2 Vertical Grade…………………………………………………..………. 5-4
5.2.4 Typical Street Section…………………………………………………..……… 5-4
5.2.4.1 Streets……………………………………………………………….…... 5-5
5.2.4.2 Non-Curb and Gutter………………………………………….…...….. 5-6
5.2.4.3 Sidewalks……………………………………………………..……........ 5-6
5.2.4.4 Irrigation……………………………………………………..……........ 5-9

LATEST REVISION: JANUARY 1, 2016 VI
Contents
5.2.5 Clear Zone………………………………………………………………...…..… 5-9
5.2.6 Driveways………………………………………………………………............. 5-9
5.2.6.1 Design Criteria……………………………………………….................. 5-9
5.2.6.2 Driveway Location………………………………………………….….. 5-10
5.2.6.3 Driveway Spacing……………………………………………………… 5-11
5.2.6.4 Driveway Alignment………………………………………………..… 5-13
5.2.6.5 Shared Driveways……………………………………………………… 5-13
5.2.7 Bicycle and Pedestrian Facilities……………………………………….…….. 5-13
5.2.7.1 Shared Use Paths………………………………………….…………..... 5-14
5.2.7.2 Bicycle Lanes………………………………………….…….………….. 5-14
5.2.7.3 Shared Roadway………………………………………………...……... 5-15
5.2.8 Cul-De-Sacs………………………………………………………….….…….… 5-15
5.2.9 Frontage Road/Service Drive……………………………………………..….. 5-15
5.2.10 Median Openings……………………………………….……………...…..….. 5-16

5.3 INTERSECTION DESIGN ELEMENTS………………….………………….……………….. 5-17
5.3.1 Angle of Intersection…………………………………………………………... 5-17
5.3.2 Development Entrances……………………………………………………….. 5-17
5.3.2.1 Signs………………………………………………………….….............. 5-17
5.3.2.2 Landscaping…………………………………………………………….. 5-17
5.3.2.3 Islands…………………………………………………………………… 5-17
5.3.2.4 Irrigation………………………………………………………………… 5-18
5.3.2.5 Gates…...………………………………………………………………… 5-18
5.3.3 Sight Distance………………………………………………………………….. 5-18
5.3.4 Roundabouts……………………………………………………………………. 5-20
5.3.4.1 Geometric Characteristics……………………………………............... 5-20
5.3.4.2 Sight Triangle…………………………………………………………… 5-20
5.3.4.3 Landscaping………………………………………………………….…. 5-21
5.3.5 Left Turn Lane Warrants at Unsignalized Intersections………………….... 5-21
5.3.6 Right Turn Lane Warrants…………………………………………………...... 5-23
5.3.7 Deceleration Lanes and Tapers…………………………………...………..…. 5-25
5.3.8 Left Turn Lanes on Divided Roadways………………………..…………….. 5-26

5.4 DESIGN OF UTILITIES OF STREET RIGHT-OF-WAY…………………………………….… 5-27
5.4.1 General Locations……………………………………………………...………. 5-27
5.4.2 General Requirements………………………………………………………… 5-29
5.4.2.1 Excavation and Backfill Requirements……………………….……… 5-29
5.4.2.2 Open Cut Installation……………………………………….…............. 5-29
5.4.2.3 Bore Installation……………………………………………..…………. 5-29
5.4.2.4 Utility Patch Repairs…………………………………………………… 5-30

5.5 DESIGN OF PAVEMENTS……………………………………………………………….… 5-31

LATEST REVISION: JANUARY 1, 2016 VII
Contents
5.5.1 New Construction………………………………………………………..…...... 5-31
5.5.1.1 Asphalt…………………………………………………………………...5-31
5.5.1.2 Concrete…………………………………………………………….…... 5-31
5.5.2 Pavement Repairs/Retrofit…………………………………………................ 5-31
5.5.2.1 Asphalt …………………………………………………………………. 5-31
5.5.2.2 Portland Cement Concrete…………………………………..…….….. 5-32

5.6 STREET LIGHTING……………………………………..………………….…………….... 5-33
5.6.1 Standard Cobra Head Fixture…………………………………………..…….. 5-33
5.6.2 Standard Decorative Fixtures……………………………………………….... 5-33
5.6.3 Specialized Decorative Fixtures………………………….…………………… 5-33
5.6.4 Decorative Pedestrian Lighting………………………….…………………… 5-34

5.7 SIGNING AND PAVEMENT MARKINGS………..………………….…………………….…. 5-36
5.7.1 Street Name Signs……………………………………………………………… 5-36
5.7.2 Regulatory Signs……………………………………………………………….. 5-36
5.7.3 Application for Signs (New Development)…………………….……………. 5-37
5.7.4 Replacement for Decorative Signs…………………………….…………..…. 5-37

5.8 RIGHT-OF-WAY PLANTING……………………………………..………….………….….. 5-38

5.9 ACCESS MANAGEMENT AND COORDINATION…………………………………………... 5-39
5.9.1 Transit Stops……………………………………………………………………. 5-40

5.10 CONSTRUCTION…….………………………………………………………..……….…. 5-41

5.11 PRIVATE STREETS….….……………...…………………...……………………..……….5-41

5.12 GREENWAYS……………..……………...…………………...……………………..……….5-41

Appendix K. Arterial Roads List
Appendix L. Collector and Residential Collector Roads List
Appendix M. Local Commercial/ Local Streets/ Cul-De-Sacs/ Alleys List
Appendix N. Request for Sidewalk Construction Form
Appendix O. Standard Drawings and Details
Appendix P. Request for Installation of Traffic Signs
Appendix P-1. Irrigation Policy
Appendix P-2. Decorative Street Signs Policy

LATEST REVISION: JANUARY 1, 2016 VIII